Improvement in millstone-bushes



UNITED STATES" PATENT OFFICE.

IMPROVEMENT IN MILLSTONE-BUSHES.

Specification forming part of Letters Patent No. 161,000, dated March23, 1875 application filed September 4, 1874.

To all whom it may concern:

Be it known that l, SoLoMoN BERNnEI'snL, of Green Park, of the county ofPerry and State of Pennsylvania, have invepted a certain Improvement inMillstone-Bushes, of which the following is a specification:

The nature of my invention consists in the combination with the spindleof a circular plate, fixed thereto so as to overhang the bush, andprovided both on its upper and lower side with tangentially-disposedribs, in tended, the former for distributing the grain properly betweenthe stones, and the latter for sweeping the top of the bush, to preventany dust or grain from getting into the oilcups.

in the annexed drawings, Figure 1 is a sectional plan View of myimproved bush. Fig. 2 is an axial section of the same. Fig. 3'is aperspective of one of the combined bearingblocks and lubricators. Fig.4: is a perspective of one of the adjusting-wedges. Fig. 5 is aperspective of the combined distributer and sweeper.

The same letters of reference are used in all the figures in thedesignation of identical parts.

The frame A of the bush is of octagonal form, with irregular sides, andthe combined bearing-blocks and lubricators B are arranged in the formof a cross in suitable recesses or pockets in the frame, resting withtheir lower closed ends upon a permanent partition of head, A thereof.The lubricators and bearing-blocks are each composed of a cast-ironapproximately rectangular oil-receptacle, B, with an open upper end, andbearing-faces B of soft metal, cast in between the projecting flanges bb of the oil-cup, suitable grooves being formed in the interior sides ofthese flanges, with which the soft metal will interlock, and thus beheld firmly in place. The bearingfaces are suitably concaved to fit thespindle O, which they are intended to embrace and sustain. The oil inthe cups B is fed to the spindle by wicks D, placed in the cups, andreaching with one end through holes 19 piercing the front wall of thecups and the softmetal bearing-faces, to the spindle. The bearing-blocksare forced up into contact with the spindle by wedges E, arrangedbetween the somewhat inclined rear walls of the oil-cups and the rim offrame A. Each wedge is connected to a stem or bolt, F, capable ofturning on or in it, and provided with a screw-threaded end, f, passingthrough a nut, f which forms a permanent lug of the frame A, andterminating in a head or eye, f by which it may be turned to adjust thewedge up or down. The wedge slides between flanges b on the oilcup, andhas a recess, 6, for the reception of the nuts, by which the bolt F issecured to it. The entire top of the frame of the bush is covered by ahead, A screwed down upon it. Or refers to the distributer and sweeper,being a circular plate suitably fixed to the spindle O, directly abovethe bush. On its under side it has the tangentially-arrangedsweeping-ribs g, formed to correspond to the contour of head A and onits upper sides it has similarly-disposed distributing-ribs g.

When the soft-metal faces B have worn away to such an extent that thewedges cannot set them in far enough to suitably hug the spindle, theymay be melted out and replaced by new ones.

What I claim as my invention, and desire to secure by Letters Patent,is-

The distributer and sweeper G g g, in combination with the bush andspindle, substantially as specified.

In testimony whereof I have signed myname to this specification in thepresence of two subscribing witnesses.

SOLOMON BERNHEISEL.

Witnesses:

D. P. HOLLOWAY, B. Enw. J. EILs.

